Construction site working in parallel

New tinning line for Plant 3 (construction phase 1)

While the excavation for construction phase 2 covering a usable area of 4660 m² is in full swing, the production buildings for construction phase 1 are being kitted out with equipment. Since we announced it in our previous newsletter, a newly developed additional hot-dip tinning line has been put into operation. As reported, since April 2018, copper alloy strips have been coated with tin in the newly equipped production building.

Hot-dip tinning is a technology that is in great demand. In this method, copper alloy strips are passed through a liquid tin bath so that the tin adheres to the base material with a defined thickness and sets to form a solid Sn layer. The method is faster and therefore more cost-effective than other coating procedures such as electroplating.

Tin layers produced by hot-dip tinning are ideal as contact materials in connectors. Hot-dip tinned coatings have proven their worth and established themselves as a global standard particularly in connector applications in the automotive industry, as this sector has high requirements when it comes to contact reliability with typically low numbers of mating cycles.

Mastering the hot-dip tinning process requires a high degree of skill and know-how from the plant operating organisation. “That is our strength. Thanks to decades of experience and a high level of technical expertise, we had the skills required to design the new unit ourselves and to build it based on our own plans,” explains Dr Wieland Pavel, member of the KEMPER management board.

With this investment, KEMPER is ready to meet the growing demand. The persistent boom in the automotive market is what is driving this development. The fact that more and more vehicles are being produced across the globe in shorter and shorter times is just one cause. In parallel to this, the number of connectors per vehicle unit is on the rise as a result of the increase in electrical functions incorporated into vehicles. Connectors made from tinned copper alloy strip are therefore required in increasing quantities. Consequently, the new tinning line is the first step to accompany this development journey for KEMPER. And more are set to follow…